Which best describes a dominant species?
a. A dominant species is the only species in an area.
b. A dominant species has low genetic diversity.
c. A dominant species has high species richness.
d. A dominant species has a high relative abundance.
e. A dominant species has a low relative abundance.
ANSWER: d
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a. Feedback inhibition is when the second enzyme in a series remains permanently blocked. b. Feedback inhibition is when a metabolic pathway is inhibited from providing feedback to other pathways. c. Feedback inhibition is when the reaction’s product functions to regulate its own further production. d. Feedback inhibition is when the first enzyme in a metabolic pathway is promoted beyond the capacity of the pathway to handle it.
An individual who avoids the pull of gravity is exhibiting
a. negative phototaxis. b. positive geotaxis. c. negative geotaxis. d. positive thigmotaxis.
An example of a latent virus infection is __________.
A. shingles B. measles C. polio D. influenza E. smallpox
In Gram staining, ethanol-acetone is used as a
A) decolorizing agent. B) counterstain. C) mordant. D) drying agent. E) primary stain.